[coreboot-gerrit] [XS] Change in coreboot[main]: buildgcc: Match the string of downloading percentage more precisely

[Felix Singer (Code Review)]

Felix Singer has submitted this change. ( https://review.coreboot.org/c/coreboot/+/66743?usp=email )

Change subject: buildgcc: Match the string of downloading percentage more precisely
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buildgcc: Match the string of downloading percentage more precisely

The command "wget" prints some hyperlink with "%", which will be
filtered in by previous regular expression. So we need to change to
match the string with exactly 3 digits and a percent symbol.

TEST:
echo 45%  | grep -o "<[0-9]{1,3}%"
  45%
echo 1245% | grep -o "<[0-9]{1,3}%"
  <empty>
echo aa%  | grep -o "<[0-9]{1,3}%"
  <empty>

Change-Id: I6ef9e7c87fd4ee6cc707346954d91e6e3af3b939
Signed-off-by: Zheng Bao 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66743
Tested-by: build bot (Jenkins) 
Reviewed-by: Felix Singer 
Reviewed-by: Elyes Haouas 
---
M util/crossgcc/buildgcc
1 file changed, 1 insertion(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Elyes Haouas: Looks good to me, but someone else must approve
  Felix Singer: Looks good to me, approved

diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 0a0462e..5944b05 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -1076,7 +1076,7 @@
    	url=$1
    	printf "... ${red}  0%%"
    	wget --tries=3 "$url" 2>&1 | while read -r line; do
-			echo "$line" | grep -o "[0-9]+%" | awk '{printf("\b\b\b\b%4s", $1)}'
+			echo "$line" | grep -o "<[0-9]{1,3}%" | awk '{printf("\b\b\b\b%4s", $1)}'
    	done
    	printf "${NC}... "
    }